用户手册目录Table of Contents2SIP IP Phone Models 9143i, 9480i, 9480i CT, and 675xi Series Phones Release Note 2.4.15About this Document5General Information6Release Content Information6Hardware Supported6Bootloader Requirements6Before you Upgrade7Please Read Before Upgrading Your Phone7New Features in Release 2.4.18Description8Description8SIP Feature8Configurable Support for Compact SIP Header8Enabling/Disabling the Compact SIP Headers Feature9User Interface Feature10Support for Additional Codec Types and Codec Priority Selection10Configuring Customized Codecs Using the Configuration Files10Configuring Customized Codecs Using the Aastra Web UI11Issues Resolved in Release 2.4.114Contacting Aastra Telecom Support16文件大小： 862.5 KB页数： 18Language: English打开用户手册
